In accordance with a first aspect of the present disclosure, a near field communication (NFC) controller is provided, comprising a load modulation amplitude control unit configured to control a load modulation amplitude of one or more signals transmitted through an NFC antenna, wherein said load modulation amplitude control unit is further configured to change said load modulation amplitude in dependence on a supply voltage. In accordance with a second aspect of the present disclosure, a corresponding method of operating a near field communication (NFC) controller is conceived. In accordance with a third aspect of the present disclosure, a corresponding computer program is provided.